Cooling-radiator



H. N. SEARLES COOL'ING R'AD|ATORS. APPLICATION FILED JAN-16,1920.

Patented Jan. 18, 1921.

2 SHEETS-SHEET I.

HERBERT N. SEARLES, OF OYSTER BAY, NEW YORK.

COOLING-RADIATOR.

Specification of Letters Patent.

Patented Jan. 18, 1921.

Application filed January 16, 1920. Serial No. 351,886.

To all whom it may concern:

Be it known that I, HERBERT N. SEARLES, a

citizen of the UnitedStates, and a resident of the town of Oyster Bay, county of Nassau, and State of New York, have invented a new and useful Improvement in Cooling-Radiators, of which the following is a specification, reference being had to the accompanyin drawings.

it is the purpose of this invention to correct certain defects in radiators of the class stated which experience has shown are apt to interfere with their efiiciency, particularly if the motor be frequently stopped and started or if atmospheric conditions, including temperature, humidity, etc., are such as to tend'to produce the trouble, and sometimes from other causes; that is to say, the free and uniform circulation of the water through the radiator is at times retarded and sometimes entirely prevented by the gradual accumulation of air in the upper part of the radiator forming what is known as an air pocket. Furthermore, in

those radiators in which the supply water is received in a large chamber at the top of the radiator, which communicates with all the tubes, and is discharged from one end of a similar chamber at the lower end of the tubes, the incoming water will frequently pass from the supply pipe directly to those of the radiator tubes which are nearest the discharge pipe and through them only, to the exclusion of the remaining tubes of the radiator. Thus the efiiciency of the radiator is reduced and freezing in cold weather is probable.

By my invention I avoid the stated objections by the incorporation of an air outlet, preferably controlled by a float valve, which while permitting the escape of air from the radiator, will prevent the escape of water therefrom; and I also incorporate in radiators of the class specially referred to above, in conjunction with my air valve, certain means for compelling the water to circulate throughout all the tubes of the radiator,

thus preventing it'spassing from theintake to the discharge through certain tubes only.

Referring to the drawings, Figure 1 is an elevation, partly in section, of a sectional radiator embodying my invention; Fig. 2 is an edgewise view of that which is shown in Fig. 1; Figs. 3, 4 and 5 are various views of the parts or spacing devices interposed between the several sections of the sectional radiator shown in Figs. 1 and 2; Fig. 6 is an elevation, partly in section. and partly in dlagram, showing my invention as applied to a non-sectional form of radiator; Fig. 7 is an edgewise View of that which is shown in Fig. 6; Fig. 8 is an elevation, partly in section and partly in diagram, of a modification of that which is shown in Figs. 6 and 7; Fig. 9 is an elevation of a modified but inferior form of my invention.

Referring first to Figs. 1 to 5, both inclusive, the radiator shown in these figures is of the so-called sectional type, that is to say, a series of units, each complete in itself, is assembled and held together by suitable bolts in such manner that should any unit.

prove defective, the radiator being taken apart, it may be removed and the remaining units reassembled, or a perfect unit may be substituted for the defective one. This necessitates the employment of my invention in conjunction with each of the units, which is effected as follows:

1, 1, 1, represent the individual units, each containing the desired number of tubes, 2 the intake, 3 the discharge, 4 the draw-off cocks for sediment or to em ty the radiator, 5 the metallic frames, see *ig. 3, provided with integral tubes 6, having bolt spaces 7, through which bolts 8 pass, and having also at one side of the frames the water passages '9 and atthe other side a solid unbroken wall 10. 11, see Fig. 5, are perforated insert plates likewise provided with the water passages 9, 9, and with bolt holes 12. 13 are the intermediate solid insert plates which have no water passages, but of course are provided with suitable bolt holes 14.

To the upper edge of the frames 5, see best Figs. 1 and 2, a cover plate 15 is soldered, inclosing a dome-like space within which is a float valve 16, which may be made of cork, wood, hollow metal, or otherwise as preferred, and from this float valve there is an upwardly extending stem 17, having a conical valve 18 at its upper end. The

ing is a cap 22, in the upper surface of whi h is'located the valve opening 23, which constitutes the seat for the conical valve 18. e

1 The method of assembling the several sections, the disposition of the dividing plates above described, the employment of the bolts 8 to clamp them all together and the employment of suitable gaskets where necessary in the various joints, are all so well understood as not to require further specific description.

The operation is as follows: The water entering at the intake, as indicated by the arrow, passes downwardly through that section through the water passages 9, 9, in the dividing plates, as shown, and upwardly through the second section, thence through the openings in the dividing sections, as illustrated, and downwardly through the third section, and thence in succession up and down until it reaches the discharge 3, from which it is conducted to the engine. @bviously no air will accumulate at the upper part of the first or water intake section, but it may accumulate at the upper part of the other sections. Should this occur, it will of course be within the dome-like chamber 15, and will pass from it through the air passages 20 in the casting, or equivalent part, 19, and escape through the valve opening 23. Thus no stoppage by reason of accumulation of air is possible, and if the water, because of insufficient freedom of circulation, should tend to accumulate in the upper part of any of the sections, then as it rises it will in due course come in contact with the fioat valve 16, and lifting that little by little will gradually seat the valve 18 in itsseat 23, thus precluding'the escape of water therefrom and compelling the circulation to be that which is desired through the tubes to the engine and back again. I lln Figs. 6 to 9, both inclusive, it .show my invention as applied to three non-sectional forms of radiator in such manner that the relief of air pockets and the employment of a float valve phases thereof are utilized and also the circulation of the Water throughout all of the radiator tubes is compelled instead ofbeingthrough a portion only of the tubes.

Referring first to Figs. 6 and 'i', 24 rep resents the tubes, 25 the water chamber at the upper end of the radiator, which, were it not for my improvement, would connect directly with all of the tubes, 26 the water intake, 27 the water exhaust. vlln order to prevent the water proceedin directly from the intake 26 to the right an passing downwardly through the few right hand tubes 24 to the exhaust 27, I build in the water chamber 25 a water-tight partition 28, thus forming a supplemental water chamber 29 within the main water chamber, which supplemental chamber I divide by a partition 30, see Fig. 7, with a cut-out portion at its upper ed e, within which the float valve 31 d, the stem 32 from which projects upwardly through a casting 33, or

recur/ea equivalent part, provided with air passages 3% and witha suitable conical valve 35, and an air opening and valve seat 36. i'iill1llarly at the lower part of the radiator l provide three water chambers 37, 9 and 39, divided by partitions i0 and -11 respectively, the chambers 37 and 38 being each provided with a draw-off cock 4:2, as usual. lit will be noted that in this construction the water that enters the intake 20 cannot pass directly to the right hand tubes, on the contrary, will be prevented from so doing by the partition 28, and compelled to move to the left, going downwardly through the left hand tubes as indicated by the arrow, into the chamber 37, and thence upwardly through the next adjacent tubes to the right, because the partition ill will preclude its passage in any other direction. and at the upper end of the tubes its flow will necessarily be as indicated by the arrows because the partition 30 will prevent it from passing in any other direction, consc quently it will pass downwardly again into the chamber 38, and being prevented by the partition, 4:1, will be compelled to again ascend to the right hand portion of the chamber 39, and thence downwardly to the exhaust,- and if air should accumulate in the chamber 29, it will pass off through the openings 33 and 36, and should the water, owing to its insuilicient take oil at the exhaust 27, rise in the chamber 29, the float valve 31 will gradually lift and seat the valve 35 in the seat 36, thus preventing escape of the water and compelling it to circulate as desired.

lln Fig. 8 I illustrate a construction somewhat the same as that shown in Fig. (5, except that instead of having the intake 26 discharge into a large chamber at the upper end of the radiator, l alter the construction as shown, so that it discharges into the left hand tubes only, and l divide the upper and lower ends of the radiator into such number Y of individual chambers, such as Hi3 and all, by partitions, such as t5 and L6, as desired, and provide each of them with a float valve 47 and co-acting parts.

In Fig. 9 I show my invention as applied to a form of radiator of the non-sectional type somewhat extensively used on heavy trucks and the like. lln this form the escape of air from the radiator is not so eiliciently provided for as in certain of the other forms, 1 but sufficiently so to effect desirable results,

because in all ordinary cases it will prevent the formation of air pockets to such extent as will interfere with the circulation of the water. In this construction the water intake 26 discharges into a chamber 48 in the upper part of the radiator, and I build into this water chamber a partition l9, and at the bottom of the radiator a partition 50, and If extend the partition 49 downwardly fill llii

between the tubes of the radiator as indicated at 51 and extend the partition 50 upwardly, likewise between the tubes as indicated at 52, so that the water entering at 26 is compelled to pass to the left, as indicated by the arrows, downwardly through the left hand tubes into the chamber 53, thence upwardly through the immediately adjacent tubes to the right into the chamber 54, and thence downwardly through the right hand tubes into the discharge chamber 55, and thence out through the exhaust 27. It will be noted that the valve 56 in this case is not of the float valve type, but is more in the nature of a check valve mounted upon the upper end of a short tube 57 projecting upwardly from the partition 49. This is so that the valve will prevent the water, which enters at the intake 26, from entering the supplemental chamber direct and will compel it to flow to the left as stated, and also any air that may accumulate in the chamber 54 will, as soon as it acquires a little pressure, lift the check valve 56 and escape into the upper chamber 48, and if water should accumulate in the chamber 54, because of insuflicient take ofi at the exhaust 27, and lift the check valve 56 and escape into this same upper chamber, it will do no harm. The air left imprisoned within the chambers, one or both, will in ordinary cases disperse itself through absor tion or otherwise, or

can be periodically rawn off through any suitable outlet, if desired.

It will be obvious to those who are familiar with such matters, in view of the several examples given, that my invention may be embodied in a variety of forms and may be availed of in connection with a variety of types of radiator; also that the details shown and described herein may be widely changed without departing from the essentials of the invention. I therefore do not limit myself to such details.

I claim:

1. A tubular radiator having a water intake at one end, a water discharge at the other end, a chamber at its upper part into which the intake discharges, a separate water tight chamber, provided with an-opening in its upper art, adjoining that into which the intake discharges, through which the water circulates and in which air, if any, will accumulate, and a float valve located therein which, when elevated, will close the said opening.

2. A tubular radiator having a water intake at one end, a water discharge at the other end, a plurality of water-tight chambers at the upper end each provided with an opening 1n its upper part, other separated water-tight chambers at the lower end of the radiator, tubes connecting the upper and lower chambers so arranged that the water is compelled to traverse through all the tubes, .and a float valve located in each of said open top chambers which, when elevated, will close the said opening- In testimony whereof I have signed my name to this specification.

HERBERT N. SEARLES. 

